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By: Carvalho, Luciana Retz de - Sant'Anna, Célia Leite - Gemelgo, Marcina Cecilia Ponte - Azevedo, Maria Teresa de PaivaType: ArticleIn: Sociedade Botânica de São PauloVolume:Series:Issue:Date: 2007-03-01Page Range:Publication Info: Sociedade Botânica de São PauloSubjects: Cyanobacteria Drinking water microcystins planar chromatography Reservoirs